Improvement in plottghs



PATENTED JAN 21 863 @Hilti-infr gtst-flesv zttgut/ffire..

bgf the un@ marked g in aga. Land 2.'

WILLIAM s. AC0.I- vr-'I,L; QF PITTSBURG, PENNSYLVANI..

Letters Patent N; 73,504. clate'al` January 21211868. v

IMPROEMBNT 1N. PLOUGHS.

v opexfaftiorrA of my impiowgment,'V 1

AYfifnessiasg- A. C. Jonnsrom;

JA'lus J. J'rms'rox. 

